How do you calculate the enthalpy change of a solution (H solution)?

To calculate the enthalpy change of a solution (H solution), you can use the formula:

H solution H solute H solvent H mixing

Where:

• H solute is the enthalpy change when the solute dissolves in the solvent
• H solvent is the enthalpy change when the solvent changes state (if applicable)
• H mixing is the enthalpy change when the solute and solvent mix

By adding these three components together, you can determine the overall enthalpy change of the solution.